Although SLES is considered safe at the concentrations used in cosmetic products, it is an irritant similar to other detergents, with the irritation increasing with concentration.
SLES has been shown to produce eye or skin irritation in experimental animals and in some human test subjects. The related surfactant SLS is a known irritant, and research suggests that SLES can also cause irritation after extended exposure in some people.
Sodium laureth sulfate, or sodium lauryl ether sulfate (SLES), is a detergent and surfactant found in many personal care products (soaps, shampoos, toothpaste etc.). SLES is an inexpensive and very effective foaming agent.
SLES has been shown to produce eye or skin irritation in experimental animals and in some human test subjects. Some products containing SLES have been found to contain low levels of the carcinogen 1,4-dioxane, with the recommendation from the FDA that these levels be monitored.
SLES, SLS and ALS are surfactants that are used in many cosmetic products for their cleansing and emulsifying properties. They behave similarly to soap.
Irritation
Although SLES is considered safe at the concentrations used in cosmetic products, it is an irritant similar to other detergents, with the irritation increasing with concentration. SLES has been shown to produce eye or skin irritation in experimental animals and in some human test subjects. The related surfactant SLS is a known irritant, and research suggests that SLES can also cause irritation after extended exposure in some people.
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